While the four-time Premier League champions are being linked with a move for AC Milan keeper Mike Maignan, he is exactly the type of player who Chelsea should be looking to sign in this area of the field. Maignan would be an excellent signing at Stamford Bridge, with data analytics experts SciSports indicating that he would arrive and immediately become a key player for the club based upon their SciSkill rating, which assesses hundreds of in-game data points to provide players with a rating.